const data = [
  { country: 'Asia', year: '1750', value: 502 },
  { country: 'Asia', year: '1800', value: 635 },
  { country: 'Asia', year: '1850', value: 809 },
  { country: 'Asia', year: '1900', value: 5268 },
  { country: 'Asia', year: '1950', value: 4400 },
  { country: 'Asia', year: '1999', value: 3634 },
  { country: 'Asia', year: '2050', value: 947 },
  { country: 'Africa', year: '1750', value: 106 },
  { country: 'Africa', year: '1800', value: 107 },
  { country: 'Africa', year: '1850', value: 111 },
  { country: 'Africa', year: '1900', value: 1766 },
  { country: 'Africa', year: '1950', value: 221 },
  { country: 'Africa', year: '1999', value: 767 },
  { country: 'Africa', year: '2050', value: 133 },
  { country: 'Europe', year: '1750', value: 163 },
  { country: 'Europe', year: '1800', value: 203 },
  { country: 'Europe', year: '1850', value: 276 },
  { country: 'Europe', year: '1900', value: 628 },
  { country: 'Europe', year: '1950', value: 547 },
  { country: 'Europe', year: '1999', value: 729 },
  { country: 'Europe', year: '2050', value: 408 },
  { country: 'Oceania', year: '1750', value: 200 },
  { country: 'Oceania', year: '1800', value: 200 },
  { country: 'Oceania', year: '1850', value: 200 },
  { country: 'Oceania', year: '1900', value: 460 },
  { country: 'Oceania', year: '1950', value: 230 },
  { country: 'Oceania', year: '1999', value: 300 },
  { country: 'Oceania', year: '2050', value: 300 }
];
const chart = new G2.Chart({
  container: 'container',
  forceFit: true,
  height: 500
});
chart.source(data, {
  year: {
    type: 'linear',
    tickInterval: 50
  }
});
chart.tooltip({
  crosshairs: {
    type: 'line'
  },
  useHtml: false
});
chart.areaStack()
  .position('year*value')
  .color('country');
chart.lineStack()
  .position('year*value')
  .color('country')
  .size(2);
chart.render();
